Door threshold



FIG. 1 is a front isometric view of the door threshold;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a side view of the door threshold in use, wherein no claim ismade to the matter represented by dashed lines which forms environmentalstructure; and,

FIG. 7 is an alternate side view of the door threshold in use.

I claim the ornamental design for a door threshold, as shown anddescribed.